I'll get the better of Lightning: Wallace

Prolific NSW Swifts shooter Sam Wallace has vowed to get the better of Sunshine Coast in Sunday's Super Netball grand final, after suffering nerves and frustration in their semi-final showdown.

Trinidadian Wallace has bagged 608 goals this year, the third highest in the competition

The 193cm shooter averages 38 goals a game at an impressive accuracy clip of 93 per cent.

She was held to her second lowest haul this season (16) in the Swifts' 10-goal major-semi final loss to the Lightning two weeks ago.

"I got frustrated when I wasn't getting the ball so now that I've learnt from my mistakes, Lightning aren't going to get the better of me. I'm going to get the better of them," Wallace told AAP.

Wallace was adamant nerves wouldn't be an issue for her in Sunday's season decider at the Brisbane Entertainment Centre - her first professional grand final after 14 years of high-level netball.

"I think all the nerves went when I played my first semi-final against Lightning. I was nervous," Wallace said.

"The Vixens (preliminary final) game I was as calm as a stone and going into the grand final I'll be fine, no nerves.

The finals matches have been taking place when it's been late in the evening in Trinidad, but that hasn't deterred her friends from feeling like they are part of her journey.

"I have my friends even at the clubs watching the game when they were partying because of the time difference," Wallace said.

"After the game, I'll see my phone, my friends will text me like 'Sam, good game'."

"They are not saying I'm in the grand final they are saying 'we.'

"I grew up playing netball with older women, so they still support me and they still carry on my journey. They message me on Facebook Messenger.

"They keep me motivated and make me feel really good that they still watch me and see the player I'm becoming."